#include <stdio.h>

void main(){
    int fahr;

    #define LOWER 0
    #define UPPER 300
    #define STEP 20

    for(fahr = LOWER; fahr <= UPPER; fahr = fahr + STEP){
        printf("%3d\t%3.1f\n", fahr, (5.0/9.0) * (fahr - 32.0));
    }
}